linux/drivers/block/ps3disk.c, branch v2.6.28

block: don't depend on consecutive minor space

2008-10-09T06:56:05Z

* Implement disk_devt() and part_devt() and use them to directly access devt instead of computing it from ->major and ->first_minor. Note that all references to ->major and ->first_minor outside of block layer is used to determine devt of the disk (the part0) and as ->major and ->first_minor will continue to represent devt for the disk, converting these users aren't strictly necessary. However, convert them for consistency. * Implement disk_max_parts() to avoid directly deferencing genhd->minors. * Update bdget_disk() such that it doesn't assume consecutive minor space. * Move devt computation from register_disk() to add_disk() and make it the only one (all other usages use the initially determined value). These changes clean up the code and will help disk->part dereference fix and extended block device numbers. Signed-off-by: Tejun Heo Signed-off-by: Jens Axboe

Kill REQ_TYPE_FLUSH

2008-10-09T06:56:02Z

It was only used by ps3disk, and it should probably have been REQ_TYPE_LINUX_BLOCK + REQ_LB_OP_FLUSH. Signed-off-by: David Woodhouse Signed-off-by: Jens Axboe

block: no need to initialize rq->cmd in prepare_flush_fn hook

2008-04-29T12:48:54Z

The block layer initializes rq->cmd (queue_flush calls rq_init) so prepare_flush_fn hooks don't need to do that. The purpose of this patch is to remove sizeof(rq->cmd), as a preparation for large command support, which changes rq->cmd from the static array to a pointer. sizeof(rq->cmd) will not make sense. Signed-off-by: FUJITA Tomonori Cc: Geert Uytterhoeven Cc: James Bottomley Cc: Jens Axboe Signed-off-by: Jens Axboe

ps3disk: Remove superfluous cast

2008-04-29T07:50:34Z

As ps3disk is a ppc64-only driver, sector_t equals to unsigned long, and the cast is not needed. Reuse in another (possibly 32-bit) driver is protected by the safety net called `compiler warning' (with the cast, it may silently truncate to 32-bit). If sector_t ever changes, we will get a compiler warning as well (with the cast, we won't). Signed-off-by: Geert Uytterhoeven Acked-by: Christoph Hellwig Signed-off-by: Jens Axboe

blk_end_request: changing ps3disk (take 4)

2008-01-28T09:36:38Z

This patch converts ps3disk to use blk_end_request interfaces. Related 'uptodate' arguments are converted to 'error'. Cc: Geoff Levand Cc: Geert Uytterhoeven Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Jens Axboe

block: convert blkdev_issue_flush() to use empty barriers

2007-10-16T09:05:02Z

Then we can get rid of ->issue_flush_fn() and all the driver private implementations of that. Signed-off-by: Jens Axboe

Fixup rq_for_each_segment() indentation

2007-10-10T07:25:56Z

Remove one level of nesting where appropriate. Signed-off-by: Jens Axboe

Introduce rq_for_each_segment replacing rq_for_each_bio

2007-10-10T07:25:56Z

Every usage of rq_for_each_bio wraps a usage of bio_for_each_segment, so these can be combined into rq_for_each_segment. We define "struct req_iterator" to hold the 'bio' and 'index' that are needed for the double iteration. Signed-off-by: Neil Brown Various compile fixes by me... Signed-off-by: Jens Axboe

[BLOCK] Get rid of request_queue_t typedef

2007-07-24T07:28:11Z

Some of the code has been gradually transitioned to using the proper struct request_queue, but there's lots left. So do a full sweet of the kernel and get rid of this typedef and replace its uses with the proper type. Signed-off-by: Jens Axboe

ps3: Disk Storage Driver

2007-07-22T00:49:16Z

Add a Disk Storage Driver for the PS3: - Implemented as a block device driver with a dynamic major - Disk names (and partitions) are of the format ps3d%c(%u) - Uses software scatter-gather with a 64 KiB bounce buffer as the hypervisor doesn't support scatter-gather Cc: Geoff Levand Signed-off-by: Geert Uytterhoeven Acked-by: Jens Axboe Cc: James Bottomley Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds